Positioning tool for hard reamer machining production

Abstract

The utility model discloses a positioning frock of hard reamer processing production relates to reamer processing technical field. The utility model discloses a bottom plate, the bottom plate top is provided with horizontal adjusting mechanism, horizontal adjusting mechanism top is provided with turnover mechanism, and the turnover mechanism top is provided with rotary fixed establishment, the turnover mechanism includes the fixed frame, and both sides of the fixed frame top are all fixedly connected with the supporting plate. The utility model rotary fixed establishment realizes all -round fixed and multi -angle rotation, and the turnover mechanism provides 90 degree turnover function, and horizontal adjusting mechanism accurate adjustment horizontal position satisfies the diversification demand of reamer positioning of complex processing technology, fundamentally improves the ability of positioning frock in fixed and adjustment aspect, ensures the stability and accuracy of hard reamer in the processing, helps to improve the processing quality of hard reamer, satisfies the production requirement of modern manufacturing industry to high -precision cutter.

Description

Technical Field

[0001] This utility model belongs to the field of reamer processing technology, and in particular relates to a positioning tooling for the processing and production of hard reamers. Background Technology

[0002] In the production of carbide reamers, positioning fixtures play a crucial role. They are widely used in various machining workshops to precisely fix and position carbide reamers for cutting, grinding, and other machining processes. Accurate positioning of the reamer ensures machining precision, improves product quality, and meets the high-precision carbide reamer requirements of numerous industries such as machinery manufacturing, aerospace, and automotive manufacturing.

[0003] For example, a fixing device for reamer processing, disclosed in CN217890234U, includes a worktable. The worktable has baffles symmetrically arranged on its surface, and symmetrically formed grooves at its top. Slider blocks are symmetrically fixed at the bottom of the baffles, and the sliders are slidably connected to the grooves. A through hole is formed on the surface of the slider, and a fixing rod passing through the through hole is fixed inside the groove. A telescopic spring is fitted onto the surface of the fixing rod relative to the inside of the groove. A fixing plate is fixed to one side of the baffle, and a positioning hole is formed on the surface of the fixing plate. A positioning screw is provided on the surface of the fixing plate and screwed into the positioning hole. This invention, through the designed slider, allows for convenient and quick adjustment of the baffle when adjustment is needed, using the designed grooves, slider, telescopic spring, and positioning screw. Compared to existing technologies, this greatly facilitates the clamping of the workpiece by the baffle.

[0004] This patent uses symmetrical baffles to clamp and fix the reamer through sliding sliders and positioning screws. It is a side linear compression fixing method, which has two shortcomings. First, the fixing contact area is small, with only the edge of the baffle contacting the reamer surface. This makes it easy for the reamer to deform due to uneven clamping force. Second, it lacks an adaptive adjustment structure and cannot fit and fix the reamer according to its curved or irregular shape. For irregular or large-diameter reamers, it is easy for the fixing to become loose or for the surface to be scratched. In addition, it lacks multi-angle processing and adjustment capabilities, which limits the processing range. The fixing device in the prior art can only achieve fine adjustment of the reamer's position on the horizontal plane (by sliding the slider along the groove), but it cannot adjust the rotation angle or spatial flip adjustment of the reamer. It cannot achieve 360° rotation of the reamer around its own axis. If it is necessary to process different circumferential positions of the reamer (such as the cutting edge or stepped surface), it is necessary to manually disassemble and reposition it, which is extremely inefficient.

[0005] To address these issues, we provide a positioning fixture for the machining of hard reamers. Utility Model Content

[0006] The purpose of this utility model is to provide a positioning fixture for the production of hard reamers. Through the cooperation of a lateral adjustment mechanism, a flipping mechanism and a rotation fixing mechanism, it solves the problems of poor fixing effect and lack of flexible adjustment function in the existing positioning fixtures for the production of hard reamers.

[0007] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution.

[0008] This utility model relates to a positioning fixture for machining hard reamers, comprising a base plate, a lateral adjustment mechanism on the top of the base plate, a flipping mechanism on the top of the lateral adjustment mechanism, and a rotation fixing mechanism on the top of the flipping mechanism; the flipping mechanism includes a fixed frame, with support plates fixedly connected to both sides of the top of the fixed frame, and a rotating rod movably connected to the opposite side of the support plates via bearings; a first motor is fixedly connected to one side of the support plates, and the output end of the first motor is fixedly connected to one end of the rotating rod; a connecting block is fixedly sleeved on the surface of the rotating rod, and a vertical plate is fixedly connected to the top of the connecting block; the rotation fixing mechanism includes a second motor, which is fixed to the vertical plate. On one side of the plate, the output end of the second motor passes through the vertical plate and is fixedly connected to a connecting sleeve. A first electric telescopic rod distributed in a circle is fixedly connected to the surface of the connecting sleeve. The output end of the first electric telescopic rod passes through the inner cavity of the connecting sleeve and is fixedly connected to a fixed arc plate. The rotating fixing mechanism realizes the covering fixing and rotation adjustment of the hard reamer to meet the requirements of different processing angles. The flipping mechanism can make the rotating fixing mechanism flip 90 degrees, which is convenient for full processing of the reamer. The horizontal adjustment mechanism can adjust the horizontal processing position of the reamer. The overall design comprehensively improves the performance of the positioning fixture in terms of fixing and adjustment, and meets the needs of modern hard reamer processing for precise positioning and multi-angle processing.

[0009] The present invention is further configured such that a second electric telescopic rod is fixedly connected to the top of the inner cavity of the fixed frame, the output end of the second electric telescopic rod passes through the fixed frame and is fixedly connected to a brake arc plate, and a friction roller that cooperates with the brake arc plate is fixedly sleeved on the surface of the rotating rod.

[0010] The present invention is further configured such that a first brake plate is fixedly connected to both sides of the top of the base plate, a third electric telescopic rod is fixedly connected to both sides of the bottom of the inner cavity of the fixing frame, and a second brake plate that cooperates with the first brake plate is fixedly connected to the output end of the third electric telescopic rod.

[0011] The present invention is further configured such that the surface of the connecting sleeve is provided with circumferentially distributed limiting holes, and a limiting rod is slidably connected to the inner wall of the limiting holes. One end of the limiting rod extends into the inner cavity of the connecting sleeve and is fixedly connected to the surface of the fixed arc plate.

[0012] The present invention is further configured such that the lateral adjustment mechanism includes a housing, the bottom of the housing is fixedly connected to the top of the base plate, a threaded rod is movably connected to the inner wall of the housing via a bearing, a third motor is fixedly connected to one side of the housing, the output end of the third motor is fixedly connected to one end of the threaded rod, a movable sleeve is threadedly connected to the surface of the threaded rod, and the top of the movable sleeve is fixedly connected to the bottom of the fixed frame.

[0013] The present invention is further configured such that a sliding rod is provided through the surface of the movable sleeve, the surface of the sliding rod is slidably connected to the movable sleeve, both ends of the sliding rod are fixedly connected to the inner wall of the housing, both sides of the housing are fixedly connected to movable guide rails, the surface of the movable guide rails is slidably connected to guide sleeves, and the top of the guide sleeves is fixedly connected to the bottom of the fixed frame.

[0014] The present invention is further provided that the top two sides of the base plate are provided with symmetrically distributed mounting holes, and the bottom two sides of the base plate and located between the mounting holes are fixedly connected with anti-slip pads.

[0015] The present invention has the following beneficial effects.

[0016] 1. The rotating fixing mechanism of this utility model realizes all-round fixing and multi-angle rotation, the flipping mechanism provides 90-degree flipping function, and the lateral adjustment mechanism precisely adjusts the horizontal position, which meets the diverse needs of complex machining processes for reamer positioning. It fundamentally improves the positioning fixture's ability in fixing and adjusting, ensures the stability and accuracy of hard reamers during the machining process, helps improve the machining quality of hard reamers, and meets the production requirements of modern manufacturing for high-precision tools.

[0017] 2. The locking structure between the various mechanisms of this utility model ensures that the adjusted position and angle are reliably fixed and are not affected by processing vibration, thus improving processing stability. The design of the mounting holes and anti-slip pads facilitates the tooling to be adapted to different processing equipment and ensures stable installation. Overall, this patent comprehensively optimizes the performance of positioning tooling in the production of hard reamers, meeting the needs of the modern machining industry for efficient, precise, and universal positioning tooling. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0019] Figure 1 A first-person perspective perspective view of a positioning fixture used in the machining of a hard reamer.

[0020] Figure 2 A second-view perspective stereoscopic view of a positioning fixture used in the machining of a hard reamer.

[0021] Figure 3 A three-dimensional view of the rotating and fixing mechanism in a positioning fixture for machining a hard reamer.

[0022] Figure 4 A three-dimensional view of the flipping mechanism in a positioning fixture for machining a hard reamer.

[0023] Figure 5 A three-dimensional view of the lateral adjustment mechanism in a positioning fixture for machining a hard reamer.

[0024] In the attached diagram: 1. Base plate; 2. Lateral adjustment mechanism; 3. Tilting mechanism; 4. Rotation and fixing mechanism; 31. Fixing frame; 32. Support plate; 33. Rotating rod; 34. First motor; 35. Connecting block; 36. Vertical plate; 41. Second motor; 42. Connecting sleeve; 43. First electric telescopic rod; 44. Fixed arc plate; 311. Second electric telescopic rod; 312. Braking arc plate; 313. Friction roller; 5. First brake plate; 6. Third electric telescopic rod; 7. Second brake plate; 21. Housing; 22. Threaded rod; 23. Third motor; 24. Moving sleeve. Detailed Implementation

[0025] The technical solutions of the present utility model will be described below with reference to the accompanying drawings. The described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0026] Example 1

[0027] Please see Figure 1-5 This utility model is a positioning fixture for the production of hard reamers, including a base plate 1, a horizontal adjustment mechanism 2 on the top of the base plate 1, a flipping mechanism 3 on the top of the horizontal adjustment mechanism 2, and a rotation fixing mechanism 4 on the top of the flipping mechanism 3; the flipping mechanism 3 includes a fixed frame 31, with support plates 32 fixedly connected to both sides of the top of the fixed frame 31, and a rotating rod 33 movably connected to the opposite side of the support plate 32 via a bearing, a first motor 34 fixedly connected to one side of the support plate 32, the output end of the first motor 34 fixedly connected to one end of the rotating rod 33, a connecting block 35 fixedly sleeved on the surface of the rotating rod 33, and a vertical plate 36 fixedly connected to the top of the connecting block 35; the rotation fixing mechanism 4 includes a second motor 41, the second motor 41 fixed to one side of the vertical plate 36, the output end of the second motor 41 penetrating through the vertical plate 36 and fixedly connected to a connecting sleeve 42, a first electric telescopic rod 43 distributed in a circle fixedly connected to the surface of the connecting sleeve 42, the output end of the first electric telescopic rod 43 penetrating into the inner cavity of the connecting sleeve 42 and fixedly connected to a fixed arc plate 44.

[0028] Specifically: the rotating fixing mechanism 4 achieves the covering and fixing of the hard ream and the rotation adjustment to meet the requirements of different processing angles; the flipping mechanism 3 enables the rotating fixing mechanism 4 to be flipped 90 degrees, which facilitates the full processing of the reamer; the horizontal adjustment mechanism 2 can adjust the horizontal processing position of the reamer. The overall design comprehensively improves the performance of the positioning fixture in terms of fixing and adjustment, and meets the requirements of modern hard ream processing for precise positioning and multi-angle processing.

[0029] Example 2

[0030] Please see Figure 1-5 Based on Embodiment 1, a second electric telescopic rod 311 is fixedly connected to the top of the inner cavity of the fixed frame 31. The output end of the second electric telescopic rod 311 passes through the fixed frame 31 and is fixedly connected to a brake arc plate 312. A friction roller 313 that cooperates with the brake arc plate 312 is fixedly sleeved on the surface of the rotating rod 33. A first brake plate 5 is fixedly connected to both sides of the top of the bottom plate 1. A third electric telescopic rod 6 is fixedly connected to both sides of the bottom of the inner cavity of the fixed frame 31. A second brake plate 7 that cooperates with the first brake plate 5 is fixedly connected to the output end of the third electric telescopic rod 6. A circumferentially distributed limiting hole is opened on the surface of the connecting sleeve 42. A limiting rod is slidably connected to the inner wall of the limiting hole. One end of the limiting rod extends into the inner cavity of the connecting sleeve 42 and is fixedly connected to the surface of the fixed arc plate 44. The lateral adjustment mechanism 2 includes a shell. The body 21 has its bottom fixedly connected to the top of the base plate 1. A threaded rod 22 is movably connected to the inner wall of the body 21 via a bearing. A third motor 23 is fixedly connected to one side of the body 21. The output end of the third motor 23 is fixedly connected to one end of the threaded rod 22. A movable sleeve 24 is threadedly connected to the surface of the threaded rod 22. The top of the movable sleeve 24 is fixedly connected to the bottom of the fixed frame 31. A sliding rod is provided through the surface of the movable sleeve 24. The surface of the sliding rod is slidably connected to the movable sleeve 24. Both ends of the sliding rod are fixedly connected to the inner wall of the body 21. Movable guide rails are fixedly connected to both sides of the body 21. Guide sleeves are slidably connected to the surface of the movable guide rails. The top of the guide sleeves is fixedly connected to the bottom of the fixed frame 31. The top of the base plate 1 has symmetrically distributed mounting holes on both sides. Anti-slip pads are fixedly connected to both sides of the bottom of the base plate 1 between the mounting holes.

[0031] Specifically: The cooperation between the second electric telescopic rod 311, the brake arc plate 312, and the friction roller 313 reliably locks the flipping angle of the flipping mechanism 3, preventing changes in the flipping angle during processing, ensuring processing stability and accuracy, and further optimizing the function of the flipping mechanism 3. The setting of the first brake plate 5, the third electric telescopic rod 6, and the second brake plate 7 enhances the fixing effect of the fixing frame 31 on the base plate 1, improves the overall stability of the tooling, ensures that no displacement occurs in each mechanism during processing, and guarantees processing accuracy. The cooperation between the limiting hole and the limiting rod ensures the stability and accuracy of the fixed arc plate 44 during movement, making the fixing of the hard reamer by the rotating fixing mechanism 4 more reliable, avoiding the offset of the fixed arc plate 44 from affecting the fixing effect, and improving the efficiency. The performance of the rotating fixing mechanism 4 and the lateral adjustment mechanism 2, through the cooperation of the threaded rod 22, the moving sleeve 24 and the third motor 23, achieve precise horizontal adjustment of the tooling, facilitating the adjustment of the machining position of the hard reamer and meeting the positional requirements of different machining processes. This solves the problem of inconvenient horizontal adjustment of traditional tooling. The guiding effect of the sliding rod on the moving sleeve 24 and the cooperation between the moving guide rail and the guide sleeve further ensure the smoothness and accuracy of the movement of the lateral adjustment mechanism 2, improve the adjustment accuracy of the lateral adjustment mechanism 2, and improve the function of the lateral adjustment mechanism 2. The mounting hole facilitates the installation of the tooling on different machining equipment, improving the versatility of the tooling. The anti-slip pad increases the friction between the tooling and the mounting surface, preventing displacement of the tooling during machining and ensuring machining stability.

[0032] The working principle of this utility model is as follows: A threaded rod 22 is installed on the inner wall of the housing 21 through a bearing. A third motor 23 on one side of the housing 21 drives the threaded rod 22 to rotate. A movable sleeve 24 is threadedly connected to the surface of the threaded rod 22. When the threaded rod 22 rotates, the movable sleeve 24 moves axially on the threaded rod 22. The top of the movable sleeve 24 is fixed to the bottom of the fixed frame 31, thereby driving the fixed frame 31 and the flipping mechanism 3 and the rotating fixing mechanism 4 above it to adjust their horizontal positions together, realizing the adjustment of the hard reamer processing position in the horizontal direction. A first motor 34 on one side of the support plate 32 drives the rotating rod 33 to rotate. The connecting block 35 fixedly sleeved on the surface of the rotating rod 33 rotates accordingly. The vertical plate 36 connected to the top of the connecting block 35 also rotates accordingly, realizing the rotating fixing mechanism 4 connected to the vertical plate 36 to rotate 90 degrees around the rotating rod 33. When it is necessary to lock the flipping angle, the second electric telescopic rod 311 at the top of the inner cavity of the fixed frame 31 extends. The brake arc plate 312 connected to its output end is fixed to the surface of the rotating rod 33. The friction roller 313 contacts the rotating rod 33 through friction, keeping the vertical plate 36 and the rotating fixing mechanism 4 at a set flipping angle. This facilitates processing the hard ream at different angles and improves the overall processing capability. The second motor 41 drives the connecting sleeve 42 to rotate, and the first electric telescopic rod 43, which is circumferentially distributed on the surface of the connecting sleeve 42, rotates accordingly. When it is necessary to fix the hard ream, the first electric telescopic rod 43 extends, and the fixed arc plate 44 connected to its output end moves towards the center of the inner cavity of the connecting sleeve 42, covering and fixing the hard ream placed in the inner cavity of the connecting sleeve 42. The limiting holes circumferentially distributed on the surface of the connecting sleeve 42 cooperate with the limiting rod. One end of the limiting rod extends into the inner cavity of the connecting sleeve 42 and is fixed to the surface of the fixed arc plate 44, ensuring the stability and accuracy of the movement of the fixed arc plate 44 and preventing it from shifting during the fixing process. The second motor 41 drives the connecting sleeve 42 to rotate, realizing the rotation adjustment of the fixed hard ream around the central axis of the connecting sleeve 42 to meet the angle requirements of different processing techniques.

[0033] The preferred embodiments of the present utility model disclosed above are only used to help illustrate the present utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the present utility model to the specific implementation methods described. The present specification selects and specifically describes these embodiments in order to better explain the principle and practical application of the present utility model, so that those skilled in the art can better understand and utilize the present utility model.

Claims

1. A positioning fixture for machining hard reamers, comprising a base plate (1), characterized in that: The bottom plate (1) is provided with a horizontal adjustment mechanism (2) at the top, the horizontal adjustment mechanism (2) is provided with a flipping mechanism (3) at the top, and the flipping mechanism (3) is provided with a rotation fixing mechanism (4) at the top. The flipping mechanism (3) includes a fixed frame (31), and a support plate (32) is fixedly connected to both sides of the top of the fixed frame (31). A rotating rod (33) is movably connected to the opposite side of the support plate (32) through a bearing. A first motor (34) is fixedly connected to one side of the support plate (32). The output end of the first motor (34) is fixedly connected to one end of the rotating rod (33). A connecting block (35) is fixedly sleeved on the surface of the rotating rod (33). A vertical plate (36) is fixedly connected to the top of the connecting block (35). The rotating fixing mechanism (4) includes a second motor (41), which is fixed to one side of the vertical plate (36). The output end of the second motor (41) passes through the vertical plate (36) and is fixedly connected to a connecting sleeve (42). A first electric telescopic rod (43) distributed in a circle is fixedly connected to the surface of the connecting sleeve (42). The output end of the first electric telescopic rod (43) passes through the inner cavity of the connecting sleeve (42) and is fixedly connected to a fixed arc plate (44). A second electric telescopic rod (311) is fixedly connected to the top of the inner cavity of the fixing frame (31). The output end of the second electric telescopic rod (311) passes through the fixing frame (31) and is fixedly connected to a braking arc plate (312). A friction roller (313) that cooperates with the braking arc plate (312) is fixedly sleeved on the surface of the rotating rod (33).

2. The positioning fixture for machining a hard reamer according to claim 1, characterized in that: The bottom plate (1) is fixedly connected to the first brake plate (5) on both sides of the top, and the bottom of the fixed frame (31) is fixedly connected to the third electric telescopic rod (6) on both sides. The output end of the third electric telescopic rod (6) is fixedly connected to the second brake plate (7) that works in conjunction with the first brake plate (5).

3. The positioning fixture for machining a hard reamer according to claim 1, characterized in that: The connecting sleeve (42) has circumferentially distributed limiting holes on its surface. A limiting rod is slidably connected to the inner wall of the limiting hole. One end of the limiting rod extends into the inner cavity of the connecting sleeve (42) and is fixedly connected to the surface of the fixed arc plate (44).

4. The positioning fixture for machining a hard reamer according to claim 1, characterized in that: The lateral adjustment mechanism (2) includes a housing (21), the bottom of which is fixedly connected to the top of the base plate (1), and a threaded rod (22) is movably connected to the inner wall of the housing (21) via a bearing. A third motor (23) is fixedly connected to one side of the housing (21), and the output end of the third motor (23) is fixedly connected to one end of the threaded rod (22). A movable sleeve (24) is threadedly connected to the surface of the threaded rod (22), and the top of the movable sleeve (24) is fixedly connected to the bottom of the fixed frame (31).

5. The positioning fixture for machining a hard reamer according to claim 4, characterized in that: A sliding rod is provided through the surface of the movable sleeve (24). The surface of the sliding rod is slidably connected to the movable sleeve (24). Both ends of the sliding rod are fixedly connected to the inner wall of the housing (21). Movable guide rails are fixedly connected to both sides of the housing (21). Guide sleeves are slidably connected to the surface of the movable guide rails. The top of the guide sleeves is fixedly connected to the bottom of the fixed frame (31).

6. The positioning fixture for machining a hard reamer according to claim 1, characterized in that: The bottom plate (1) has symmetrically distributed mounting holes on both sides of its top, and anti-slip pads are fixedly connected to both sides of its bottom and between the mounting holes.

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